After two memorable battles, the two best heavyweights in combat sports today meet for the third time to settle the score once and for all at UFC 166. Fresh from a first round knockout of Antonio "Bigfoot" Silva, champion Cain Velasquez defends his title against the man he has waged war against twice, Brazilian knockout artist Junior dos Santos, who earned his shot at redemption with a highlight reel finish of Mark Hunt. On October 19, the best in the business complete their trilogy on mixed martial arts' biggest stage. Plus, Roy "Big Country" Nelson takes on unbeaten Daniel Cormier, and Gilbert Melendez squares off with Diego Sanchez.

"I see things better than I did before. When I hit people, they go down." No. 1 contender Junior Dos Santos discusses his rubber match with Cain Velasquez and his plans to knock the champion out...again.